Patent US3700588A successfully refreshed from Google Patents.
US3700588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel hydroreforming catalysts and a method for preparing the same
Assignee: Compagnie Francaise de Raffinage SA
•
Filing: 1970-02-13
•
Granted: 1972-10-24
•
Expires: 1990-02-13
Abstract
Abstract NOVEL HYDROREFORMING CATALYSTS ARE DISCLOSED WHICH IMPROVE THE REFORMING OF HYDDROCARBON FEEDS. THESE NOVEL CATALYSTS ARE A COMBINATION OF THE PLATIMUM GROUP METALS WITH TIN AND/OR LEAD.
Inventors
- 👤 Joseph Edouard Weisang
- 👤 Philippe Engelhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:45
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J23/622; B01J23/626; B01J21/00; B01J21/02; B01J21/04; B01J35/00; B01J35/60; B01J35/61; B01J35/613; B01J35/63; B01J35/633; B01J37/00; B01J37/22; B01J37/24; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |